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13 条记录 (耗时 0.018 秒)

    Extraction process
    3.
    发明授权
    Extraction process 有权
    提取过程

    公开(公告)号：US08926924B2

    公开(公告)日：2015-01-06

    申请号：US13576583

    申请日：2011-01-27

    申请人： Bror Nyman ,  Erkki Paatero ,  Stig-Erik Hultholm ,  Eero Ekman

    发明人： Bror Nyman ,  Erkki Paatero ,  Stig-Erik Hultholm ,  Eero Ekman

    IPC分类号： C04B35/00 ,  C01G43/00 ,  C22B3/38 ,  C22B60/02

    CPC分类号： C01G43/003 ,  C22B3/0047 ,  C22B60/026 ,  Y02P10/234

    摘要： A method for the selective recovery of uranium from a sulphate-based acidic aqueous solution of uranium containing iron and other metals by means of solvent extraction, in which the extractant used in the organic extraction solution is bis(2-ethylhexyl) phosphate and a liquid branched trialkyl phosphine oxide is the modifying agent. It is typical of the method that the uranium concentration in the feed solution is less than 50 mg/l and a reducing agent is introduced into the aqueous and/or extraction solution to prevent the permanent oxidation of iron to trivalent. In the method the majority of the extraction solution is circulated in a circuit consisting of the extraction stage and the storage tank and only a small part of the uranium-loaded extraction solution is routed to scrubbing and stripping.

    摘要翻译： 一种通过溶剂萃取从含硫铁酸和其他金属的硫酸盐酸性水溶液中选择性回收铀的方法，其中在有机萃取溶液中使用的萃取剂是磷酸双（2-乙基己基）酯和液体 支链三烷基氧化膦是改性剂。 该方法的典型方法是，进料溶液中的铀浓度小于50mg / l，并​​将还原剂引入水和/或提取溶液中以防止铁的永久氧化成三价。 在该方法中，大多数提取溶液在由萃取阶段和储存罐组成的回路中循环，并且只有少部分的铀负载萃取溶液被送至洗涤和汽提。

    EXTRACTION PROCESS
    4.
    发明申请
    EXTRACTION PROCESS 有权
    提取过程

    公开(公告)号：US20120297929A1

    公开(公告)日：2012-11-29

    申请号：US13576583

    申请日：2011-01-27

    申请人： Bror Nyman ,  Erkki Paatero ,  Stig-Erik Hultholm ,  Eero Ekman

    发明人： Bror Nyman ,  Erkki Paatero ,  Stig-Erik Hultholm ,  Eero Ekman

    IPC分类号： C22B60/02

    CPC分类号： C01G43/003 ,  C22B3/0047 ,  C22B60/026 ,  Y02P10/234

    摘要： A method for the selective recovery of uranium from a sulphate-based acidic aqueous solution of uranium containing iron and other metals by means of solvent extraction, in which the extractant used in the organic extraction solution is bis(2-ethylhexyl) phosphate and a liquid branched trialkyl phosphine oxide is the modifying agent. It is typical of the method that the uranium concentration in the feed solution is less than 50 mg/l and a reducing agent is introduced into the aqueous and/or extraction solution to prevent the permanent oxidation of iron to trivalent. In the method the majority of the extraction solution is circulated in a circuit consisting of the extraction stage and the storage tank and only a small part of the uranium-loaded extraction solution is routed to scrubbing and stripping.

    摘要翻译： 一种通过溶剂萃取从含硫铁酸和其他金属的硫酸盐酸性水溶液中选择性回收铀的方法，其中在有机萃取溶液中使用的萃取剂是磷酸双（2-乙基己基）酯和液体 支链三烷基氧化膦是改性剂。 该方法的典型方法是，进料溶液中的铀浓度小于50mg / l，并​​将还原剂引入水和/或提取溶液中以防止铁的永久氧化成三价。 在该方法中，大多数提取溶液在由萃取阶段和储存罐组成的回路中循环，并且只有少部分的铀负载萃取溶液被送至洗涤和汽提。

    METHOD FOR RECOVERING GOLD BY SOLVENT EXTRACTION
    7.
    发明申请
    METHOD FOR RECOVERING GOLD BY SOLVENT EXTRACTION 有权
    通过溶剂萃取回收金的方法

    公开(公告)号：US20130104701A1

    公开(公告)日：2013-05-02

    申请号：US13702232

    申请日：2011-06-07

    申请人： Erkki Paatero ,  Mika Haapalainen

    发明人： Erkki Paatero ,  Mika Haapalainen

    IPC分类号： C22B3/00 ,  C25C1/20

    CPC分类号： C22B11/04 ,  C01G7/00 ,  C01P2002/80 ,  C01P2004/03 ,  C22B3/0005 ,  C22B3/0009 ,  C22B11/042 ,  C25C1/20 ,  Y02P10/214 ,  Y02P10/234

    摘要： The invention relates to a method for recovering gold by solvent extraction from an acidic chloride-containing aqueous solution or from slurry containing gold-bearing solids using a diester-based reagent that is poorly soluble in water as organic extraction solution. In accordance with the method, gold is extracted extremely effectively, but other precious metals and many other metals quite sparingly. Gold is stripped from the extraction phase with pure water, from which the gold can be reduced either chemically or electrochemically.

    摘要翻译： 本发明涉及一种通过溶剂萃取从含酸性氯化物的水溶液或含有含金固体的浆料中回收金的方法，该方法使用难溶于水作为有机萃取溶液的二酯基试剂。 按照这种方法，黄金被非常有效地提取，而其他贵金属等许多金属则相当谨慎。 用纯水从萃取相中除去黄金，从中可以化学或电化学还原金。

    Sulphonated polymer resin and preparation thereof
    8.
    发明授权
    Sulphonated polymer resin and preparation thereof 失效
    磺化聚合物树脂及其制备方法

    公开(公告)号：US06664340B1

    公开(公告)日：2003-12-16

    申请号：US10069300

    申请日：2002-05-28

    申请人： Ari Kärki ,  Erkki Paatero ,  Heikki Heikkilä ,  Heikki Mononen ,  Hannu Paananen ,  Jari Tiihonen

    发明人： Ari Kärki ,  Erkki Paatero ,  Heikki Heikkilä ,  Heikki Mononen ,  Hannu Paananen ,  Jari Tiihonen

    IPC分类号： C08F834

    CPC分类号： B01J39/20 ,  B01J31/10 ,  B01J39/26 ,  C08F8/36 ,  C08F2800/20 ,  C08F212/08

    摘要： The invention relates to sulphonated polymer resins, particularly polymer resins with a sulphonated shell layer, and the preparation thereof. Resins according to the invention are prepared by sulphonating a polymer in a non-swollen state with substantially pure gaseous sulphur trioxide substantially in the shell layer of the polymer particles. The polymer to be sulphonated can be for example a styrene-DVB copolymer. The resins according to the invention can be used for example as chromatographic resins, ion-exchange resins and catalyst resins.

    摘要翻译： 本发明涉及磺化聚合物树脂，特别是具有磺化壳层的聚合物树脂及其制备。 根据本发明的树脂通过基本上在聚合物颗粒的壳层中以基本上纯的气态三氧化硫将非膨胀状态的聚合物磺化来制备。 要磺化的聚合物可以是例如苯乙烯-D DVB共聚物。 根据本发明的树脂可以用作例如色谱树脂，离子交换树脂和催化剂树脂。

    Method for recovering gold by solvent extraction
    9.
    发明授权
    Method for recovering gold by solvent extraction 有权
    溶剂萃取法回收金的方法

    公开(公告)号：US08926730B2

    公开(公告)日：2015-01-06

    申请号：US13702232

    申请日：2011-06-07

    申请人： Erkki Paatero ,  Mika Haapalainen

    发明人： Erkki Paatero ,  Mika Haapalainen

    IPC分类号： C22B3/00 ,  C25C1/20 ,  C01G7/00 ,  C22B3/26

    CPC分类号： C22B11/04 ,  C01G7/00 ,  C01P2002/80 ,  C01P2004/03 ,  C22B3/0005 ,  C22B3/0009 ,  C22B11/042 ,  C25C1/20 ,  Y02P10/214 ,  Y02P10/234

    摘要： The invention relates to a method for recovering gold by solvent extraction from an acidic chloride-containing aqueous solution or from slurry containing gold-bearing solids using a diester-based reagent that is poorly soluble in water as organic extraction solution. In accordance with the method, gold is extracted extremely effectively, but other precious metals and many other metals quite sparingly. Gold is stripped from the extraction phase with pure water, from which the gold can be reduced either chemically or electrochemically.

    摘要翻译： 本发明涉及一种通过溶剂萃取从含酸性氯化物的水溶液或含有含金固体的浆料中回收金的方法，该方法使用难溶于水作为有机萃取溶液的二酯基试剂。 按照这种方法，黄金被非常有效地提取，而其他贵金属等许多金属则相当谨慎。 用纯水从萃取相中除去黄金，从中可以化学或电化学地还原金。